BitTorrent Connections

In general for Tomato, what's a good number to limit your global BitTorrent Connections to? I have mine set to 150, but I'd like to try for a higher number... Think Tomato can handle it? What numbers can you all confirm as stable? I want to continue using BT but not overwhelm my GSv2, but I also want to see how high it can go and still be stable in the long run.

I have Azureus set to allow 2000 global connections and while this setting can stress my 2.4GHz P4 (Azureus and Comodo sometimes bring PC CPU utilization near 100%) under heavy bt traffic the router never even breaks a sweat.